kvm loop can t delete device dev loop0 device or resource busy

holinhot

Registered
Jan 19, 2013
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Root Administrator
Hello,all

I'm using cloudlinux and have installed cpanel for KVM vps,but the rebooting system display "loop can t delete device dev loop0 device or resource busy"

as shown in the figure:


my disk:
Code:
[email protected] [~]# df -h
Filesystem                         Size  Used Avail Use% Mounted on
/dev/mapper/vg_clcla1923-LogVol02   32G  4.6G   26G  16% /
tmpfs                              1.9G     0  1.9G   0% /dev/shm
/dev/vda1                          194M   49M  135M  27% /boot
/dev/mapper/vg_clcla1923-LogVol01  158G  592M  149G   1% /home
/usr/tmpDSK                        485M   11M  449M   3% /tmp
[email protected] [~]# fdisk -l

Disk /dev/vda: 214.7 GB, 214748364800 bytes
16 heads, 63 sectors/track, 416101 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00065368

   Device Boot      Start         End      Blocks   Id  System
/dev/vda1   *           3         409      204800   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/vda2             409      416102   209509376   8e  Linux LVM
Partition 2 does not end on cylinder boundary.

Disk /dev/mapper/vg_clcla1923-LogVol00: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/vg_clcla1923-LogVol02: 34.1 GB, 34145828864 bytes
255 heads, 63 sectors/track, 4151 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/vg_clcla1923-LogVol01: 171.8 GB, 171798691840 bytes
255 heads, 63 sectors/track, 20886 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

[email protected] [~]#
and
Code:
[email protected] [~]# df -h
Filesystem                         Size  Used Avail Use% Mounted on
/dev/mapper/vg_clcla1923-LogVol02   32G  4.6G   26G  16% /
tmpfs                              1.9G     0  1.9G   0% /dev/shm
/dev/vda1                          194M   49M  135M  27% /boot
/dev/mapper/vg_clcla1923-LogVol01  158G  592M  149G   1% /home
/usr/tmpDSK                        485M   11M  449M   3% /tmp
[email protected] [~]#
fstab
Code:
[email protected] [~]# cat /etc/fstab

#
# /etc/fstab
# Created by anaconda on Wed Jan  8 06:01:57 2014
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/vg_clcla1923-LogVol02 /                       ext4    defaults        1 1
UUID=4816b084-1263-46c3-81d1-0c08c00bf3b3 /boot                   ext4    defaults        1 2
/dev/mapper/vg_clcla1923-LogVol01 /home                   ext4    defaults        1 2
/dev/mapper/vg_clcla1923-LogVol00 swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
/usr/tmpDSK             /tmp                    ext3    defaults,noauto        0 0
[email protected] [~]#
as shown in the figure:


Thanks Very much
 

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cPanelPeter

Technical Analyst III
Staff member
Sep 23, 2013
575
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143
cPanel Access Level
Root Administrator
Twitter
Hello,

Are you certain the device isn't just busy? Have you checked with the fuser command?

Code:
fuser -c /dev/loop0
fuser -d /dev/loop0
fuser -f /dev/loop0
If you get a PID back on it, try to stop whatever process it is first.
 
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